It typically means what are you down to do, sometimes referred to as a sexual term.
Example:

Her: “I like you
Him: “alright so what you on
by Onroad militant April 24, 2019
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basically asking what you are about to get your self in to
Man i'm about to be on some freaky type shit
thats what you on
by Te-Te Baby September 23, 2006
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A Greeting originating from the Kirk Hallam region of Derbyshire England. It is often used in place of hello and what's up.
Cameron: oi bruv what you chewing?

Tyrone:not much bro.
by DATSLANGMAN January 12, 2016
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The iconic Shakespeare insult that shook tha nation. Egg meaning egg.
Ever been stabbed by a person or thought of stabbing another? Well I’ve got the thing for you!

Mom: Not my son!!!!! :0
Intruder: What, you egg?! :<
*stabs*
Son: Nooooo :(
by Handymany;) May 28, 2018
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What you claim is what you ask someone to know what set they rep or what gang they affiliate With
Ay cuz what you claim

Ay man bd (black deciples)all the way
by 98331122 January 13, 2019
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